This is not an in-depth look at all of the research on the brain (such a resource would fill stacks of books). Instead, the goal of this brain tour is to familiarize you with major brain structures and their functions. The cerebral cortex is the part of the brain that functions to make human beings unique.
Advice. As your child gets older, advice for the next year can be good to write in his birthday card. Don't give him a lecture, but rather something that is positive, encouraging or inspiring.
A common thing to write on a Bat Mitzvah card is a note of congratulations. If the person knows the girl well, she should write something personal in addition to a short congratulatory phrase.